We look at the division of 584237 by 86 
The aim is to understand the frequency of 86 in 584237.

Let's proceed to step 1:
When dividing 5 by 86, we get 0 with a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Fetch the next digit (8) from the dividend, attach it to 5 and continue: 58 / 86

Let's proceed to step 2:
58 divided by 86 is 0 with a remainder of 58.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 58 leaves us with 58.
Include the next digit (4) from the dividend after 58, then repeat: 584 / 86

Step 3:
When dividing 584 by 86, we get 6 with a remainder of 68.
The next digit of our result is 6. 
Result so far: 6.0
If we take 516 away from 584, we end up with 68.
Grab the next digit (2) from the dividend, add it to 68, then carry on: 682 / 86

Moving on to step 4:
86 can be fit into 682 7 times, resulting in a remainder of 80.
Write down 7 as next digit of the result. 
Result so far: 67.0
If we take 602 away from 682, we end up with 80.
Grab the next digit (3) from the dividend, add it to 80, then carry on: 803 / 86

Going ahead to step 5:
86 can be fit into 803 9 times, resulting in a remainder of 29.
The number 9 becomes the next digit in our result. 
Result so far: 679.0
Subtracting 774 from 803 leaves us with 29.
Take the next digit (7) from the dividend and append it to 29, then repeat: 297 / 86

Moving on to step 6:
The number 86 fits into 297 3 times, leaving a remainder of 39.
Record the quotient 3 as the next digit in the result. 
Result so far: 6793.0
Subtract 258 from 297 to get 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Going ahead to step 7:
The number 86 fits into 390 4 times, leaving a remainder of 46.
The next digit of our result is 4. 
Result so far: 6793.4
Deduct 344 from 390 and we're left with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

On to step 8:
The number 86 fits into 460 5 times, leaving a remainder of 30.
The number 5 becomes the next digit in our result. 
Result so far: 6793.45
If we take 430 away from 460, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 9:
86 can be fit into 300 3 times, resulting in a remainder of 42.
The next digit of our result is 3. 
Result so far: 6793.453
Subtract 258 from 300 to get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Moving on to step 10:
When dividing 420 by 86, we get 4 with a remainder of 76.
Put 4 as the next digit of the answer. 
Result so far: 6793.4534
If we take 344 away from 420, we end up with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Let's proceed to step 11:
760 divided by 86 is 8 with a remainder of 72.
Record the quotient 8 as the next digit in the result. 
Result so far: 6793.45348
Subtracting 688 from 760 leaves us with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

On to step 12:
The number 86 fits into 720 8 times, leaving a remainder of 32.
The next digit of our result is 8. 
Result so far: 6793.453488
If we take 688 away from 720, we end up with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

The final result is 6793.453488 with a remainder of 3.2e-06.